Shutter Speeds 3

Night shooting was the final part of the shutter speeds exploration - I don't think I'm going to get to doing water as I really need to get on to week four.

Last night I got to the bus stop quite late after work and looked up the river to the most awesome light display. I hung around for about 15 mins experimenting with different ISOs, apertures and shutter speeds.
400 10" f/22

On this one I bumped the camera a bit which elongated the lights - I like it though.

320 10" f/22

I found I wasn't getting any noise even at high ISOs but then I wasn't going for super-long exposure. I was aiming to reproduce what I was seeing rather than brighten up the scene.

One of the activity tutorials for week four was playing around with layers and blur effects to reproduce extreme focal lengths. This was my experiment:

The original photograph was sharp - taken on macro, indoors with flash. I created a duplicate layer and then blurred it to a factor of six, then erased one pair of needle tops to allow the sharp image to show through.

The tutorial recommended using a wide brush for the eraser - I discovered that I could pump this up nice and high to make the job go faster. I also discovered that turning off the background layer made it much easier to see any bits I'd missed. Cool huh!

More Shutter Speeds

Continuing my commute, I got off before Putney Bridge hoping to get some shots down the river. The sun was still fairly low and waaaaaay too bright so I waited until I was behind a tree on the other side (I could have taken shots upstream but that would have meant crossing the road - not a good plan in peak hour).

The sun is behind the tree here and I was trying to capture the bright contrast on the water and the railway bridge. The first shot rather alarmed me until I realised I still had the shutter speed set slow from the motion blur shots (oops).

1/4 f/22

I started playing with the settings and discovered that just changing the shutter speed meant everything was coming out under-exposed - too much light I guess. So I switched to fully manual and altered my f-stops as well.

1/200 f/22

About the tenth shot came out how I liked it. Funnily enough, quite similar to the shot the camera took for itself on 'auto' :-)

1/400 f/11

Shutter Speeds

I took the camera out on my way to work this morning to have a play with shutter speeds - it was so much fun!

At first I had no idea - thank goodness for unlimited digital 'film' - and got lots of blurry bits where I hadn't intended them. But in a while I started getting the hang of it all. I set the camera to 'S' (for shutter) and let the F-stop take care of itself.

Bike 1/4 f/22

Playing around with speeds I found that (not surprisingly) different speeds gave good results depending on whether I was photographing a car/motorbike or a bicycle. But the speed did not have to vary much at all.

Car 1/4 f/22

I also had a go at panning, which was MUCH harder, and did manage to get one or two clear shots eventually.

Scooter 1/15 f/10

From the bridge I played around a bit more with shutter and aperture taking pictures against the sun but I don't have time to upload them now - I'll get to that in the next post.

Btw, all today's shots were taken at ISO 100 which, in hindsight, I probably should have changed due to the bright sunshine - anyone tell me what it should have been? I haven't got my head quite around it all yet ;-)

Brilliant!

For all of us struggling with f-stops and shutter speeds Dave posted us this great link:

http://www.uscoles.com/fstop.htm

Thanks!

Stops

This week it's all about the light. F-stops, apertures, ISO, under-exposure, over-exposure.

I have learned: When the F-stop goes down the aperture goes up - and vice versa. And if you change the ISO you go back to the beginning and figure out the maths again. I need to read it all again I think.

Here's a photo I'm rather proud of as I've finally figured out how to shorten the depth of field for artistic blurriness :-)

This week's assignment has us taking photos in interesting light. Creative motion blur, night-time shots, high contrast settings. It's going to be interesting - and Ali's offered to bring round the Fire Poi for a bit of night practice!

Moving house has put me a bit behind (note the suspicious lack of posts labelled week 2) but I'll catch up that shoot sometime.